Clamp-collar for winding mechanism



(No Model.)

J. BARRETT.

CLAMP GOLLAR FOR WINDING MECHANISMS.

No. 417,133. Patented Dec. 10,1889,

W27]? ess'es lime/Zion 2 2 z% W film/w 29772 3 5.

UNIT D STATES PATENT OFFICE.

JAMES BARRETT, OF \VALPOLE, NEIV HAMPSHIRE,

CLAMP-COLLAR FOR WINDING MECHANISM.

SPECIFICATION forming part of Letters Patent No.-417,133, dated December 10, 1889. Application filed ll'uly 22, 1889- Serial No. 318,222- (No model.)

To aZZ whom it may concern.-

Be it known that I, J AMEs BARRETT, a citizen of the United States, residing at \Valpole, in the county of Cheshire and State of New Hampshire, have invented certain new and useful Improvements in Clamp-Collars for \Vinding Mechanism; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to figures of reference marked thereon, which form a part of this specification.

This invention relates to improvements in winding mechanism; and it consists in an attachment termed a clamp-collar, adapted to be located upon the winding-shaft to prevent the material in process of winding from slipping endwise upon its shaft, spindle, or tube,

as the case may be, about which it is being wound, as now frequently happens.

It consists, moreover, in the peculiar con struction of the clam p-collar, by which it may be shifted longitudinally along the windingshaft to accommodate material of different widths, and, further, in the adjustment, which maybe efiected without stopping the rotation of the winding-shaft.

The drawings represent, in Figure l,a cen tral longitudinal sectional elevation of wind ing devices having applied thereto clampeollars embodying my invention. Fig. 2 is a section diametrically of said collar enlarged. Fig. 3 is a sideelevation of the same.

In the present instance I have represented my improved clamp-collar as attached to the winding-shaft of a paper-machine; but it is evident that such collar may be employed equally as well with any revolving shaft, tube, or spindle about which is wound a continuous web of material. 7

In the process of forminga roll of material,

as cloth or paper, about a revolving spindle it has been found that the roll frequently slipsthat is, it is moved longitudinally or endwise of its winding-shaft, one portion of the material slipping upon the other and making one end convex and the other concave, such movement occurring at or near thecore. This movement is sometimes due to unequal tension uponthe materiahwhile in paper the slip is frequently due to the fact that the calendering is not uniform. It is impossible to say when a slip will occur; but my attachment is intended to effectually prevent anychancc for such an ew ent.

In the drawings accol'npanying this specification I have shown two short shafts at 1 1, one of which is the driving or winding shaft, suitably mounted in fixed standards. Roll paper, particularly for ewspapers, is wound upon tubes or pipes cut in suitable lengths, but of varying diameter, to suit the width of the material or the size of the rolls to be made. Moreover, upon' the adjacent ends of said shafts, one of which is the operating one, are rigidly affixed by means of set-screws 1717 the clamp-collars as entireties 2 2, the latter serving to connect the spindle or tube with the winding-shaft Said clamp-collars consist of short tubular shafts 3, one end of which is preferably enlarged or formed with an annular shoulder or ring 4, while the opposite end is conical or tapered, in order to'enter and fit the tubes or spindles 10, upon which the material is to be stored, and which tubes, as before stated, vary in size. The tube or spindle engages with this shaft by means of a lug 5, the-latter entering a notch in the spindle-tube or winding-shaft. The straight portion of each of said shafts 3 is screwthreaded to engage with a flanged plate or collar (3, movable endwise thereupon The front face of said flange is a plane surface, and is adapted to be set up contiguous to the material in process of winding. A follower or cheek-nut 7 is also provided, in order to maintain the collar in proper position after its adjustment into place.

' lVith my invention there is no need to stop the winding-shaft, since by grasping the rim of the flanged collar the latter can be run end wise of its shaft. Thus it may be caused to contact with or be withdrawn from the end ofa roll. Before such withdrawal can take place the check-nutmust of course be run back out of the way. This attachment is of simple construction, easily operated, and is equally well adapted for round or square shafts, or even for one screw-threaded. In any case the bore of the tubular shaft 3 must correspond to the shape of the shaft As I l shown, both are cylindrical and smooth; but

they may be given any other form in crosssection, or they may be screwthreaded, without the exercise of invention or even ingenu-ity.

In the winding of paper this invention is peculiarly valuable, since a break is very often avoided, while much time is saved in comparison with the old manner of accomplishing the same result.

In furnishii'ig a winding-shaft with these clamp-collars, as described, the parts at each end are similar in every respect, excepting that the screw portions on the tubular shafts 3 are respectively threaded right and left to cause the collars to co-operate properly, either to approach or retreat. from the ends of a roll. a

In Fig. 1 I have represented the shafts 1 1, which support the spindle upon which the material is to be wound, as separate; but in some instances a shaft may extendin one continuous length through said spindle, as indicated in the dotted lines in said d rawing'.

IVhat I desire to claim is 1. In combination with a winding-shaft, a

' clamp-collar having a sleeve removably at tached to said shaft and furnished with a flanged plate movable cndwise thereupon to contact with the material in process of winding, substantially as and for purposes specified.

2. A removable clamp-collar for windingshafts, composed of a sleeve having a bore to fit the shaft upon which it is affixed, said sleeve being exteriorly screw-threaded in part and tapered at one end to engage the spindle or tube for the material, and with a flanged plate adjustable endwise upon said sleeve and screw-threaded to engage the screw-thread of said shaft,substantially as herein set forth and described.

In combination with a winding-shaft, a clamp-collar attachment 2, which unites the winding-shaft with the spindle and is composed of a tubular shaft screw-threaded exteriorly in part, an internally-screw-threaded flanged plate 6, movable endwise of said shaft,

and a follower or ch eck-n ut 7, substantially as stated. 7

In testimony whereof I affix my signature in presence of two witnesses.

JAMES BARRETT.

\Vitnesses:

PRESTON H. HADLEY, JOSEPH S. WI LsoN. 

